/*
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package io.trino.plugin.opa.schema;

import io.trino.spi.security.ViewExpression;

import java.util.Optional;

import static java.util.Objects.requireNonNull;

public record OpaViewExpression(String expression, Optional<String> identity)
{
    public OpaViewExpression
    {
        requireNonNull(expression, "expression is null");
        requireNonNull(identity, "identity is null");
    }

    public ViewExpression toTrinoViewExpression(String catalogName, String schemaName)
    {
        ViewExpression.Builder builder = ViewExpression.builder()
                .catalog(catalogName)
                .schema(schemaName)
                .expression(expression);
        identity.ifPresent(builder::identity);
        return builder.build();
    }
}
